Description:
Rookwood Weir is a $367 million water infrastructure investment to drive new economic and employment opportunities for the agricultural industry and the community of Central Queensland.
It is a mass concrete structure with fixed crest spillway, stilling basin, left and right abutments, low flow outlet, and dedicated fish and turtle passage solutions. Situated on the Fitzroy River, 66km south-west of Rockhampton, the completed weir will rise 16.2m above the riverbed and have a full supply volume of 74,325 megalitres.
Rating Highlights
| Category | Credits | Achievements/Risks |
| Energy | Ene-1:
Energy and carbon monitoring and reduction |
Achieved Level 1.5 and 4.17 points:
300,000m2 of excavation volumes was saved by optimising the weir crest length and batter slope design, and 4,427 tonnes of cement have been saved through the Project achieving 63% SCM against a base case of 50% for structural concrete. |
| Water | Wat-2:
Replace potable water |
Achieved Level 2.89 and 3.35 points:
237,000kL (96.5%) of potable water was saved during the design and construction phases by using non-potable from the Fitzroy River. |
| Ecology | Eco-2:
Habitat connectivity |
There were a couple of notable initiatives for the Eco-2 Habitat connectivity credit, which also resulted in the project achieving firsts within the Innovation category.
The construction of an innovative fish lock with multiple entry and exit levels will allow for increased fish passage as head- and tail-waters fluctuate on the Fitzroy River. This innovation achieved State First. A dedicated turtle passage has been specifically incorporated into the design to cater for the movement patterns of the Fitzroy River Turtle and White-throated Snapping Turtle, allowing them safe navigation of the waterway barrier. This innovation achieved Australian First. |
| Innovation | Innovation: Fish Passage | |
| Innovation | Innovation: Turtle Passage |
Verified Innovations
| Name | Verification Date | Innovation Type | Description / Sustainability Benefits | |
| Fish Passage | 24/10/2022 | State First – Innovative Technology or Process | As above | |
| Turtle Passage | 24/10/2022 | Australian First – Innovative Technology or Process | As above | |
| IC-8 Sustainable Suppliers and iSupply | 24/10/2022 | IC-8 Sustainable Suppliers and iSupply | ||
| IC-1 Piloting v2.0/v2.1 credits | 24/10/2022 | Improving on Benchmarks | Leg-1 |
Certification Date:
| 2-May-24 |